'''#字典推导式
list1=['name','age','id']
list2=['tom','18','1']
dict={list1[i]:list2[i] for i in range(len(list1))}
print(dict)

#提取字典中的目标数据
count={'tom':200,'marry':180,'lili':220}
dict1={key:value for key,value in count.items() if value>200}
print(dict1

#集合推导式
list=[1,1,2]
set={i**2 for i in list}
print(set))
'''